On 09/05/16 10:36, Andrew Cooper wrote:
> On 09/05/2016 09:29, Juergen Gross wrote:
>> Domain-0 is always member of Pool-0 (or, to be precise: of the cpuppol
>> with cpupool-id 0). Document this in the xl man page.
>>
>> Signed-off-by: Juergen Gross <jgr...@suse.com>
> 
> Out of interest, why?
> 
> Is this a limitation of the current implementation, or something which
> couldn't be made to work?
> 
> Given that it is all just vcpus and linked lists in the end, I can't see
> why this should necessarily be the case.

Main reason was to keep cpu hotplugging simple. New cpus are always
added to Pool-0 and should be available to dom0 immediately without
having to move them to another cpupool.

It could be changed, of course. But I don't see any advantage in
allowing to move dom0 to another cpupool, while the code would be
more complicated.


Juergen


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